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Article Dans Une Revue Physical Review B Année : 2022

Quantum boomerang effect in systems without time-reversal symmetry

Résumé

In an Anderson localized system, a quantum particle with a nonzero initial velocity returns, on average, to its origin. This recently discovered behavior is known as the quantum boomerang effect. Time-reversal invariance was initially thought to be a necessary condition for the existence of this phenomenon. We theoretically analyze the impact of the symmetry breaking on the phenomenon using a one-dimensional system with a spin-orbit coupling and show that the time-reversal invariance is not necessary for the boomerang effect to occur. We explain this behavior giving sufficient symmetry conditions for the boomerang effect to occur when time-reversal symmetry is broken.
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Dates et versions

hal-03630072 , version 1 (07-09-2023)

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Jakub Janarek, Benoît Grémaud, Jakub Zakrzewski, Dominique Delande. Quantum boomerang effect in systems without time-reversal symmetry. Physical Review B, 2022, 105 (18), pp.L180202. ⟨10.1103/PhysRevB.105.L180202⟩. ⟨hal-03630072⟩
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